Improvement in machines for making boot and shoe heels



A. KNOW L TO N.

Machines for Making Boot and Shoe Heels.

Patented Jan. 14, 1873.

12217;}? i a i I AM, PHOTO-LITHOERAil/C C0. N.)f( SEED/WEI? PROCESS.

UNITED STATES PATENT OFFIoE.

ALBION KN OWLTON OF BOSTON, MASSACHUSETTS, ASSIGNOR TO JAMES W. BROOKS, TRUSTEE, OF SAME PLACE.

IMPROVEMENT IN MACHINES FOR MAKING BOOT AND SHOE HEELS.

Specification forming part of Letters Patent No. 134,899, dated January 14, 1873.

i To all whom it may concern: a projection, 21, which, when the punch comes Be it known that I, ALBION KNowL oN, of under the plunger Z, brings up against a catch, Boston, inthe county of Suffolk and State of w, and arrests the punch in position for the Massachusetts, have invented an Improved action of the plunger in pressing the leather Machine for Making Boot and Shoe Heels upon the punch to out a lift. Within the punch and I do hereby declare that the following, is a slide-pin, w,- and when one or more lifts taken in connection with the drawing which may have been cut by the punch such lift or accompanies and forms part of this specificalifts will be pressed down into the punch by tion, is adescription of my invention sufficient the plunger, and will force down the pin w, to enable those skilled in the art to pratice it. causing said pin to depress the catch w, and The invention relates to the manufacture of freeing the punch so that it will be moved on boot and shoe heels and consists primarily by the continued movement of the shaft 1', the in an organization of mechanism by which heelpunch not being released until a certain thicklifts of graduated sizes and varying thickness ness or extent of thickness is attained. As are automatically punched out by a series of each punch moves forward, after being thus punches, are automatically assembled or piled charged with a lift or lifts, it comes, after two in conformity with their respective sizes, and quarter rotations, to a position opposite to that are automatically fastened together to form it had when cutting the leather, and at this the heel or heel-blank. point it comes under two stationary impaling- The drawing represents a machine embodypins, 3 extending down from a block, 2. When ing my improvements. A shows the machine the punch comes under these pins a piston, a, in side and sectional elevation; B is asectional is forced up against the pin 00, and, pushing view of one of the punches, &c.; O, a plan of said pin up, presses the lift or lifts up against the punch D, a sectional elevation. and upon the pins 3 leaving such lift or lifts a denotes a bed having an upright, 12, and there impaled. This piston is jointed to a letwo horizontal arms, 0 d. Extending up from ver, b fulcrumed at 0 and connected, by a thearm c is a vertical spindle, c, journaled in link, d with a cam-groove in -one face of a the bed, and having extending from it a numgear-wheel, f on the driving-shaft, a pin, 9 her of radial arms, f, there being preferably extending from the link into said groove. four of these arms, arranged right-angularly, The gear f turns loosely upon the drivingand each having at its end a punch, the four shaft and is rotated by a sliding clutch-wheel, punches g h t It being of respective size to W, upon and turning with the shaft, the clutchpunch four sizes of lifts, which, when assemwheel being forced into connection with anbled and of proper thickness, will form a regother gear-wheel, i loose upon the shaft, this ularly-tapered heel, the leather being introgear 1' being connected to and driving the duced over the front punch, and being forced gear f by means of gears 10 l on an intermeagainst the punch by a plunger, 1, at the end diate shaft, m the clutch-wheel being thrown of aslide-bar, m, which baris reciprocated verinto connection with the gear 2' to drive it, tically by a crank-pin extending from a crankand being thrown from such a connection by wheel, a, on the driving-shaft o. The puncha spring, m The clutch-wheel has on its outer arm spindle c carries at its top afriotion wheel end a scroll-cam, a, the face of which lies or disk, 19, against which bears afriction-wheel, against a hook, 0 by which the clutch-wheel g, on a shaft, 1', which shaft 1' is driven by a is forced in as the cam-face rotates against it. bevel-wheel, s, on the driving-shaft, meshing The hook 0 is on the end of a lever, 19 against into a bevel-wheel, t, on the shaft 1", the fricthe lower arm g of which an arm, 1' presses, tional contact of the wheel being sufficient to being held there by the stress of the spring cause the spindle e to be turned by the shaft 1", 8 The arm T has a shoulder, t and when when said spindle is free to turn, the shaft 1' the cam n acts on the lever 12 it carries the turning without rotating the spindle e if either hook o of the lever into the path of moveof the punches be locked in position; At the ment of a wiper or cam, 26 which as it strikes bottom of each pimch-arm under the punch is the hook moves the lever-arm back and raises the arm 9 permitting the shoulder t? to be drawn under the arm g thereby locklng the ho'okb'ack. When the hook is thus thrown back, it passes the face of the cam a and the the lever-arm r from the shoulder t the spring then drawing down the arm g so that as the shoulder t of the clutch-wheel cam n passes the hook 0 the hook will be thrown in front of the cam-face. As the clutch-wheel then continues to rotate, the hook will force the wheel in and into engagement with the gear-wheel t the gear-wheel then turning and its cam actuating the lever b and causing the piston a to throw up the pin 00, and impale thepunched lift upon the pins 3 the piston being drawn back by a spring, 2 when free to moveback. The heel is made of the lifts from the four punches thus punched, as-

I sembled, and impaled upon the pins y, and

when the last and smallest lift has been impaleda stripper, a is thrown down and strips the blank from the pins, this stripper or stripper-plate extending from a vertical slide, 12 to which is jointed the front arm of a lever, 0 whose rear arm lies in the path of movement of a lifter, d extending from the friction wheel p, the action of this lifter depressing the stripper, (through which the impalingpins pass,) and, of course, throwing off the blank or assembled lifts from the pins y. After the lifts are punched and assembled upon the pins y, and before they are stripped therefrom, they may be united by slight nails to retain them together, so as to form a heelblank. For this purpose any suitable nailing mechanism and any suitable nail-forming material may be employed, using nails contained in a loose assemblage, with a selecting mechanism that will present the nails successively in position to be driven or to be conveyed to the driving mechanism, or a wire-like material with mechanism to sever nail-forming lengths therefrom, or a strip from which nails are cut,

as in pegging-machines using peg-wood strips,

such mechanism being so arranged that'one or i more nails are driven through the lifts every time the whole number of lifts are assembled upon the impaling-pins.

I claim- 1. In combination with a vertically-moving die or plunger, a series of punches automatically brought in succession under the plunger, substantially as described.

2. In combination with an automatic vertically-movin g die or plunger, a series of punches graded to cut lit'ts of variable size to form heel-blanks, substantially as described.

3. In combination with a seriesof lift-cutting punches moved under a vertical plunger, and mechanism fordetainin g each punch under the plunger, as described, the mechanism, substantially as described, by which the punch is released by the pressure of the lifts punched by it.

4. In combination with the mechanism for punching heel-lifts, as described, the mechan ism, substantially as described, for automatically discharging the punched lifts.

5. In combination with the series of punches, the mechanism, substantially as described, that automatically discharges the lifts from each punch in succession and assembles the lifts from all the punches.

6. In combination with the mechanism described for assembling the lifts, the mechanism, substantially as described, for discharging the assembled lifts.

7. The combination of the mechanism described for punching heel-lifts, the mechanism, substantially as described, for assembling such punched heel-lifts, and the mechanism for fastening them together to form a heel or heel-blank.

Executed this 8th day of April, A. D. 1872.

ALBION KNOWLTON.

Witnesses:

FRANCIS GoULn, M. W. FROTHINGHAM. 

